Advantages of using a smart infrared sensor checking the temperature of the PCB in dispenser machines

Dispensing is a process in which glue, oil or other liquids are applied or dripped to a PCB or specific components mounted on a PCB. Materials dispensed can range from very low (water like) to very high (toothpaste like) viscosity and encompass many different functions. These include solder paste to electrically connect components, encapsulants to protect devices from atmospheric conditions and provide moisture-proof insulation, thermal interface materials (TIMs) to help dissipate heat from parts, and adhesives to attach parts to a substrate or assembly. The dispensing process actually is a process to protect the product and improve the product reliability.

As an example, dispensing is used to prevent solder joints from loosening, especially in areas of weak structure on the PCB, such as chips. When the product falls and vibrates, the PCB will vibrate back and forth, and the vibration will be transmitted to the solder joints between the chip and the PCB, which will crack the solder joints. At this time, dispensing does make the solder joints completely surrounded by glue, reducing the risk of cracking in the solder joints.